#include <stdio.h>
#define COVERAGE 200
int main()
{
	int sq_feet;
	int cans;
	
	printf( "Enter number of square feet to be painted: \n" );
	while( scanf("%d",&sq_feet) == 1)
	{
		cans = sq_feet / COVERAGE;
		cans += ((sq_feet % COVERAGE) == 0) ? 0 : 1;
		printf( "You need %d %s of paint.\n",cans,
			cans == 1 ? "can" : "cans");
		printf("Enter next value (q to quit): \n");
	}
	return 0;
}